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Volatile organic compounds (VOCs) recovery from aqueous solutions via pervaporation with vinyltriethoxysilane-grafted-silicalite-1/polydimethylsiloxane mixed matrix membrane
Yi, Shouliang1,2; Wan, Yinhua1
2017-04-01
发表期刊CHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
卷号313页码:1639-1646
摘要Recovery of volatile organic compounds (VOCs) from industrial wastewaters is important for the prevention of environmental pollution. This study investigated pervaporative recovery of VOCs by vinyltriethoxysilane (VTES)-grafted-silicalite-1/PDMS mixed matrix membrane (MMM) from the methanol-containing binary, ternary and quaternary wastewater solutions. The separation of methanol/water binary mixtures was first conducted. The influence of feed concentration and temperature on the membrane performance, such as permeation fluxes and VOC/water separation factor, was investigated. It was observed that with the increase of VOC concentration in the feed, the total permeation flux increased and the selectivity changed slightly first, then decreased. At a feed methanol concentration of 10.51 wt% at 65 degrees C, the maximum PSI of 5346 g/m(2) h with a separation factor of over 10 were obtained with the VTES-g-silicalite-1/PDMS MMM, which makes it among the best in the literature and is very competitive for methanol recovery from aqueous solutions. The apparent activation energies of water and VOC during the pervaporation process was calculated based on Arrhenius equation. Thai the mixed matrix membrane was applied to ternary and quaternary wastewater model solutions. Compared with binary methanol/water mixture, the addition of ethanol and/or acetone led to a decrease of the total flux, methanol flux, and methanol/water separation factor, but increased the total VOCs flux and the permeate VOCs concentration. Separation factors of individual VOC towards water follow the order of acetone > ethanol > methanol, which is consistent with those in binary aqueous mixtures. (c) 2016 Elsevier B.V. All rights reserved.
关键词Pervaporation Volatile Organic Compounds (Vocs) Vinyltriethoxysilane Polydimethylsiloxane (Pdms) Wastewater
文章类型Article
WOS标题词Science & Technology ; Technology
DOI10.1016/j.cej.2016.11.061
收录类别SCI
语种英语
关键词[WOS]METHANOL REMOVAL ; SEPARATION ; WATER ; ETHANOL ; PERFORMANCE ; MIXTURES ; STYRENE ; ACETONE ; BINARY
WOS研究方向Engineering
WOS类目Engineering, Environmental ; Engineering, Chemical
项目资助者National High Technology Research and Development Program of China(2012AA021202) ; National Natural Science Foundation of China(21176239) ; Chinese Academy of Sciences' Key Deployment Project(KSZD-EW-2-017-3)
WOS记录号WOS:000394723200166
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22088
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Georgia Inst Technol, Sch Chem & Biomol Engn, 311 Ferst Dr NW, Atlanta, GA 30332 USA
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Yi, Shouliang,Wan, Yinhua. Volatile organic compounds (VOCs) recovery from aqueous solutions via pervaporation with vinyltriethoxysilane-grafted-silicalite-1/polydimethylsiloxane mixed matrix membrane[J]. CHEMICAL ENGINEERING JOURNAL,2017,313:1639-1646.
APA Yi, Shouliang,&Wan, Yinhua.(2017).Volatile organic compounds (VOCs) recovery from aqueous solutions via pervaporation with vinyltriethoxysilane-grafted-silicalite-1/polydimethylsiloxane mixed matrix membrane.CHEMICAL ENGINEERING JOURNAL,313,1639-1646.
MLA Yi, Shouliang,et al."Volatile organic compounds (VOCs) recovery from aqueous solutions via pervaporation with vinyltriethoxysilane-grafted-silicalite-1/polydimethylsiloxane mixed matrix membrane".CHEMICAL ENGINEERING JOURNAL 313(2017):1639-1646.
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